Finding the Fourth Proportional to 8,914.27, 12,301.61 and 5,136.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,914.27 : 12,301.61 = 5,136.05 : x
2. Step 2: Convert to fraction form
   8,914.27/12,301.61 = 5,136.05/x
3. Step 3: Cross multiply
   8,914.27x = 12,301.61 × 5,136.05
4. Step 4: Simplify right side
   8,914.27x = 63,181,596.85
5. Step 5: Solve for x
   x = 63,181,596.85/8,914.27
6. Step 6: Final answer
   x = 7,087.69